Beep Codes*

POST Description

2-1-4-3

Display BIOS copyright notice.

2-1-4-4

Initialize MultiBoot.

2-2-1-1

Display CPU type and speed.

2-2-1-2

Initialize EISA board.

2-2-1-3

Test keyboard.

2-2-2-1

Set key click if enabled.

2-2-2-2

Enable USB devices.

2-2-3-1

Test for unexpected interrupts.

2-2-3-2

Initialize POST display service.

2-2-3-3

Display prompt "Press F2 to enter SETUP".

2-2-3-4

Disable CPU cache.

2-2-4-1

Test RAM between 512 and 640 kB.

2-3-1-1

Test extended memory.

2-3-1-3

Test extended memory address lines.

2-3-2-1

Jump to UserPatch1.

2-3-2-3

Configure advanced cache registers.

2-3-2-4

Initialize Multi Processor APIC.

2-3-3-1

Enable external and CPU caches.

2-3-3-2

Set up System Management Mode (SMM) area.

2-3-3-3

Display external L2 cache size.

2-3-3-4

Load custom defaults (optional).

2-3-4-1

Display shadow-area message.

2-3-4-3

Display possible high address for UMB recovery.

2-4-1-1

Display error messages.

2-4-1-3

Check for configuration errors.

2-4-2-3

Check for keyboard errors.

2-4-4-1

Set up hardware interrupt vectors.

2-4-4-2

Initialize Intelligent System Monitoring.

2-4-4-3

Initialize coprocessor if present.

3-1-1-1

Disable onboard Super I/O ports and IRQs.

3-1-1-2

Late POST device initialization.

3-1-1-3

Detect and install external RS232 ports.

3-1-1-4

Configure non-MCD IDE controllers.

3-1-2-1

Detect and install external parallel ports.

3-1-2-2

Initialize PC-compatible PnP ISA devices.

3-1-2-3

Re-initialize onboard I/O ports.

3-1-2-4

Configure Motherboard Configurable Devices (optional).

3-1-3-1

Initialize BIOS Data Area.

3-1-3-2

Enable Non-Maskable Interrupts (NMIs).

3-1-3-3

Initialize Extended BIOS Data Area.

3-1-3-4

Test and initialize PS/2 mouse.

3-1-4-1

Initialize floppy controller.

3-1-4-4

Determine number of ATA drives (optional).

3-2-1-1

Initialize hard-disk controllers.

3-2-1-2

Initialize local-bus hard-disk controllers.

3-2-1-3

Jump to UserPatch2.

3-2-1-4

Build MPTABLE for multi-processor boards.

3-2-2-2

Install CD-ROM for boot.

3-2-2-3

Clear huge ES segment register.

3-2-2-4

Fix up Multi Processor table.

3-2-3-2

Check for SMART Drive (optional).

3-2-3-3

Shadow option ROMs.

3-2-4-1

Set up Power Management.

3-2-4-2

Initialize security engine (optional).

3-2-4-3

Enable hardware interrupts.

3-2-4-4

Determine number of ATA and SCSI drives.

3-3-1-1

Set time of day.

3-3-1-3

Check key lock.

3-3-2-1

Initialize typematic rate.

3-3-3-1

Erase F2 prompt.

3-3-3-3

Scan for F2 keystroke.

3-3-4-1

Enter SETUP.

3-3-4-3

Clear Boot flag.

3-4-1-1

Check for errors.

3-4-1-2

Inform ROMPilot about the end of POST.

3-4-1-3

POST done - prepare to boot OS.

3-4-2-2

Terminate QuietBoot (optional).

3-4-2-3

Check password (optional).

3-4-2-4

Initialize ACPI BIOS.

3-4-3-2

Prepare Boot.

3-4-3-3

Initialize SMBIOS.

3-4-3-4

Initialize PnP Option ROMs.

Service Manual

Troubleshooting and Diagnostics

3-21

Page 155 Page 157
Page 156
Image 156
HP 2500, 1100, 2100 manual Display Bios copyright notice
Page 155 Page 157

2500, 2100, 1100 specifications

The HP 1100 and 1100A are pivotal laser printers developed by Hewlett-Packard in the early 1990s, marking significant advancements in printing technology of their time. Since their introduction, these models have garnered a reputation for reliability and efficiency, making them a staple in many offices.

One of the standout features of the HP 1100 series is its fast printing speed. The printers can produce up to 12 pages per minute, which was an impressive feat at the time of their release. This speed significantly reduced waiting times, allowing users to handle large-volume printing jobs with ease. Furthermore, the printers support a variety of media types, including letterhead, envelopes, and labels, enhancing versatility in print applications.

The HP 1100 and 1100A utilize laser technology, which ensures sharp and high-quality prints. The printers have a native resolution of 600 x 600 dots per inch (DPI), enabling crisp text and detailed graphics. This high-resolution output made the models particularly favored for producing professional documents and presentations.

Another key characteristic is the generous memory capacity. The HP 1100 typically comes with 2 MB of standard RAM, which is expandable, allowing for improved performance in handling complex print jobs. Users can adjust the memory according to their requirements, resulting in better efficiency, particularly in environments that demand high-volume printing.

The HP 1100 series also showcases a straightforward and user-friendly operation. The built-in control panel simplifies the printing process, allowing users to manage jobs intuitively. Additionally, with the inclusion of parallel and later USB connectivity options, integration with various computer systems was seamless, ensuring compatibility with existing office infrastructure.

Energy efficiency is another aspect worth noting, as the printers are designed to consume minimal power when idle, aligning with the growing demand for eco-friendly solutions.

Overall, the HP 1100 and 1100A stand out for their robust construction, high-speed performance, exceptional print quality, and user-friendly features, making them a trusted choice for small to medium-sized businesses in need of dependable printing solutions. Their impact on the printing landscape during the 1990s continues to be felt today, as they paved the way for subsequent generations of laser printers.
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